Imperial Keyway Broach Set Includes Broach Sizes 1/8B| 3/16B | 1/4C|3/8C Bush Diameters 9/16 | 11/16 | 13/16 | 15/16 | 1 1/16 | 1 3/16 | 1 5/16 | 1 7/16 | 1 9/16